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Abstract

This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License.

Copyright

Copyright (c) 2015 IETF Trust and the persons identified as the

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United States

Language

English (United States)

This text was extracted from an ASCII text file.

This is the abbreviated version, containing approximately
6% of the total text.

A Mechanism for Transporting User-to-User
Call Control Information in SIP

Abstract

There is a class of applications that
benefit from using SIP to exchange
User-to-User Information (UUI) data during session establishment. This information, known as call control UUI
data, is a small piece of data
inserted by an application initiating the
session and utilized by an application accepting the session. The
syntax and semantics for the UUI data used by a specific
application are defined by a UUI
package. This UUI data is opaque to SIP
and its function is unrelated to any
basic SIP function. This document defines a new SIP header field,
User-to-User, to transport UUI data,
along with an extension mechanism.

Status of This
Memo

This is an Internet Standards Track
document.

This document is a product of the Internet
Engineering Task Force (IETF). It represents the consensus of the IETF
community. It has received public review and has been
approved for publication by the
Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section
2 of RFC 5741.

Information about the current status of this
document, any errata, and how to
provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7433.

Copyright (c) 2015 IETF Trust and the
persons identified as the document
authors. All rights reserved.

This document is subject to BCP 78 and the
IETF Trust's Legal Provisions Relating
to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and
restrictions with respect to this
document. Code Components extracted from
this document must include Simplified
BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided
without warranty as described in the
Simplified BSD License.